22024321 has 4 divisors (see below), whose sum is σ = 24026544. Its totient is φ = 20022100.

The previous prime is 22024313. The next prime is 22024349. The reversal of 22024321 is 12342022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22024321 - 2³ = 22024313 is a prime.

It is a super-2 number, since 2×22024321² = 970141431022082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22024295 and 22024304.

It is not an unprimeable number, because it can be changed into a prime (22024351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1001095 + ... + 1001116.

It is an arithmetic number, because the mean of its divisors is an integer number (6006636).

Almost surely, 2^22024321 is an apocalyptic number.

It is an amenable number.

22024321 is a deficient number, since it is larger than the sum of its proper divisors (2002223).

22024321 is a wasteful number, since it uses less digits than its factorization.

22024321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002222.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 22024321 is about 4693.0076709931. The cubic root of 22024321 is about 280.3071501887.

Adding to 22024321 its reverse (12342022), we get a palindrome (34366343).

The spelling of 22024321 in words is "twenty-two million, twenty-four thousand, three hundred twenty-one".